Re: [dpdk-dev] [PATCH v3] i40evf: fix crash when setup tx queues on vf port

["Wu, Jingjing" <jingjing.wu@intel.com>]

> -----Original Message-----
> From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com]
> Sent: Thursday, July 30, 2015 6:33 AM
> To: Wu, Jingjing
> Cc: dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v3] i40evf: fix crash when setup tx queues
> on vf port
> 
> > This patch fixes the issue:
> > Testpmd crashed with Segmentation fault when setup tx queues on vf
> > Steps for reproduce:
> >   - create one vf device from i40e driver
> >   - bind vf device to igb_uio and start testpmd
> >
> > With debugging tools, we saw the struct i40e_vf is cleared after
> > memcpy(&dev->data->dev_conf, dev_conf, sizeof(dev->data->dev_conf))
> in
> > rte_eth_dev_configure, which should not happen, and the pointer to
> > i40e_vf isn't in the range of i40e_adapter.
> >
> > The root cause is the dev_private_size in i40e virtual function driver
> > struct rte_i40evf_pmd was set incorrectly.
> >
> > Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
> 
> Applied, thanks
> 
> Does it mean that Tx with i40evf never worked before?

Actually we didn't face crash with previous version, i40vf tx works before, what makes me surprised. Maybe just lucky.